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开始于//的注释被称为单行注释
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未知题型
Some famous athletes and entertainers earn millions of dollars every year. Do you think these people deserve such high salaries? Write an essay of about 400 words on the following topic:
Do Famous People Deserve High Incomes?
In the first part of your essay you should present your thesis statement, and in the second part you should support the thesis statement with appropriate details. In the last part you should bring what you have written to a natural conclusion or a summary.
Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the above instructions may result in a loss of marks.
判断题
为使直流电动机的旋转方向发生改变,只能改变励磁电流方向。
未知题型
听力原文: We live in a society in which the medicinal and social use of substances is pervasive: an aspirin to quiet a headache, some wine to be sociable, coffee to refresh oneself in the morning. When do these socially acceptable and apparently constructive uses of a substance become misuses? Most substances taken in excessively will produce negative effects such as poisoning. Repeated use of a substance can also lead to addiction or substance dependencE.Dependence is marked first by an increased tolerance, and then by the appearance of withdrawal symptoms when the substance is discontinueD.
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